Apparatus for heating or cooling liquids.



PATENTED DEC. 18, 1906.

H. FELDMEIBR. APPARATUS FOR HEATING 0R COOLING LIQUIDS.

APPLIO ATION FILED AUG. 7, 1908.

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H. PELDMEIER. APPARATUS FOR HEATING 0R COOLING LIQUIDS.

APPLIGATION FILED AUG. 7, 1906.

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UNITED STATES PATENT OFFICE.

HARVEY FELDMEIER, OF LITTLE FALLS, NEW YORK, ASSIGNOR TO D. H. BUREELL & COMPANY, OF LITTLE FALLS, NEW YORK.

APPARATUS FOR HEATING OR COOLING LlQUlDS.

Specification of Letters Patent.

Patented Dec. 18, 1906.

Application filed August 7,1906. Serial No. 329,589.

To all whmn it may concern.-

Be it known that I, citizen of the United States, residing at Little Falls, in the county of Herkimer and State of New York, have invented a new and useful Improvement in Apparatus for Heating or Oooling Liquids, of which the following is a specification.

This invention relates to devices or apparatus of that class which comprise a vat for the reception of the liquid to be heated or cooled and an oscillating stirrer or agitator which has the form of a coil, through which a heating or cooling medium flows and which is moved back and forth through the liquid in the vat for stirring or agitating the same and at the same time heating or cooling the liquid. Apparatus of this kind is often used for ripening cream, in which operation the charge of cream, which may consist of several batches of different grades, is thoroughly commingled and mixed with a starter or ferment, usually made of skim-milk, which, being heavier than the cream, is liable to settle to the bottom. The oscillating coil thoroughly mixes these liquids and at the same time produces and maintains therein the desired temperature by means of hot or cold water flowing through the coil, the temperature required for carrying on the ripening process being usually about 80 Fahrenheit.

The object of my invention is to improve this class of apparatus with a view of rendering the same more efficient and convenient in use and more compact in construction.

In the accompanying drawings, consisting of two sheets, Figure 1 is a longitudinal sectional elevation of a heating or cooling apparatus embodying my improvements. Fig. 2 is a fragmentary longitudinal section through the oscillating coil in line 2 2, Fig. 3. Fig. 3 is a vertical cross-section in line 3 3, Fig. 1. Fig. 4 is an end elevation of the apparatus. Fig. 5 is a vertical section through the inlethead of the coil in line 5 5, Fig. 1. Fig. 6 is a vertical section through the outlet-head of the coil in line 6 6, Fig. 1.

Like letters of reference refer to like parts in the several figures.

A represents the body of the vat, which has the form of a horizontal half-cylinder open at the top and which comprises, preferably, an inner concave metallic wall a, an outer similar wall a, an interposed non-conducting packing a upright end walls a a HARVEY FELDMEIER, a 1 similarly constructed, and a top frame a The body of the vat is provided with a cover of any suitable construction, preferably comprising, as shown, stationary end pieces I), which are secured upon the end walls a a of the body of the vat, a stationary longitudinal top piece I), and inclined movable side pieces b which are hinged at their upper ends to opposite sides of the longitudinal top piece I), so that they can be raised for giving access to the vat.

O represents the oscillating coil, which is arranged within the body of the vat so as to swing back and forth in the same. This coil is provided at opposite ends with horizontal trunnions c c, journaled in bearings d d, which are secured to the stationary end pieces I) of the cover.

The inlet-trunnion c, which receives the heating or cooling fluid, hot water or steam, or cold water, as the case may be, from a pipe, connects at its inner end with a manifold head E, to which the longitudinal circulating-pipes F are secured at one end, while these pipes are secured at the other end to a similar manifold head G. These circulating -pipes F are arranged in two groups on opposite sides of the upright central plane of the coil, and the pipes in each group are preferably arranged, as shown, in the form of an angle with the apex turned outwardly, so that both groups of pipes together present approximately a triangular arrangement. Between the two groups of pipes F is arranged the horizontal outlet-pipe F, which extends from the inlet-head E to the outlet-head G at the bottom of the coil and is connected near the outlet-head to an ascending outlet-pipe f, which connects with the outlet-trunnion c.

The manifold heads E G are provided with partitions e g, respectively, so arranged that the fluid passes from the inlet-head E to the outlet-head G through the uppermost pipe F of each group and then back and forth successively through the lower pipesF, as indicated by the arrows in Figs. 1 and 2, until the lowermost compartment of the inlet-head E is reached, from which the fluid passes through the longitudinal outlet-pipe F to the ascending outlet-pipef and outlet-trunnion c.

The trunnions c c and their bearings d d are arranged above the axial line of the inner curvature of the body of the vat and above the top edge of the body and extend outside of the latter. Each of the bearings d d is preferably formed in one piece with the adj acent metallic end piece I) of the cover. This arrangement of the trunnions above the top edge of the vat locates the trunnions above the level of the liquid in the vat and does away with stufling-boxes for maintaining tight joints. As the trunnions are mainly outside of the vat, drippings from the trunnions do not reach the vat. This arrangement also reduces the depth of the vat and enables thelow'er part of the latter to be conveniently reached for cleaning.

As-the coil swings eccentrically to the curvat'ure of the vat it does not approach the lower portion of the; vat as closely as desirable,- and in order to agitate the liquid below the coil a supplementary stirrer H is employed, which oscillates concentric with the curvature of the vat. This stirrer is preferably hung, asshown, by rods-h on pivots i, arranged concentrically with the curvature of the vat and supported by hangers I, secured to the stationary top piece I) of the cover. This supplementary stirrer H is arranged between the outlet-pipe F and projections 76 on the manifold heads E G, whereby the stirrer is caused to oscillate with the coil, but eccentrically thereto, and in close proximity to the inner surface of the vat.

L rep-resents counterweightswhich are secured to the outer ends of the trunnions c c for balancing the weight of the coil. The two groups of circulating-pipes F F on opposite sides of the central plane of the coil balance each other to a certain extent, whereby the size of the required counterweights is correspondingly reduced.

The coil is oscillated by any suitable mechanism'for instance, by that shown in Fig. 4, which comprises a worm m on a horizontal driving-shaft, aworm-wheel M, rotated thereby and having a crank-pin n, and arod 0, connecting said pin with an arm p on the outlet trunnion c.

I claim as my invention 1. An apparatus for heating and cooling liquids comprising a vat, an oscillating coil arranged within the same, and a supplemental stirrer which oscillates with the coil and projects below the same, substantially as set forth.

2. The combination of a vat, an oscillating c'oil arranged therein, and a supplementary stirrer mounted to move eccentrically with reference to the coil, substantially as set forth.

3. The combination of a vat having a concave inner surface, an oscillating coil mounted to move eccentrically to said surface, and a supplementary stirrer mounted to move concentrically to said surface, substantially as set forth.

4. The combination of a vat having a concave inner surface, horizontal bearings arsaasea ranged above said vat and eccentricto its inner surface, an oscillating coil having trunnions which are journaled in said bearings, and a supplementary stirr er which is pivotally mounted concentric with said surface, substantially as set forth.

5. The combination of a vat having a concave inner surface, horizontal bearings arranged eccentrically to said surface, an oscillating coil having trunnions which are journal'ed in said bearings, and a supplemental stirrer oscillating on an axis which is arranged lower than said bearings, substantially as set forth.

6. The combination of a vat having a concave inner surface, horizontal bearings arranged eccentilcally to said surface, an oscillating coil having trunnions which are journaled in said bearings, a supplementary stirrer mounted on an axis eccentric to said bearings, and means on said coil for moving said stirrer, substantially as set forth.

7. The combination of a vat having a concave inner surface, horizontal bearings arranged eccentrically to said surface, an oscillating coil having trunnions which are journaled in said bearings, a supplementary stirrer, a pivotal support for the same arranged concentric to said concave surface, and means on said coil for moving said stirrer back and forth with the coil, substantially as set forth.

8-. The combination of a vat having a concave inner surface, horizontal bearings arranged eccentrically to said surface, an oscillating coil having trunnions which are j'our-' naled in said bearings, a supplementary stirrer, a cover on said vat, and a pivotal support for said stirrer secured to said cover and arranged concentric with said concave surface, substantially as set forth.

9. The combination of a vat having a concave inner surface, horizontal bearings arranged eccentrically to said surface, an oscillating coil having trunnions which are journaled in said bearings, a supplementary stirrer, a cover on said vat, a pivotal support for said stirrer secured to said cover and arranged concentric with said concave surface, and means on said coil for oscillating said stirrer, substantially as set forth.

10. The combination of a vat provided with horizontal bearings and an oscillating coil having trunnions which are journaled in said bearings and having longitudinal circulating-pipes which are arranged in groups on opposite sides of its longitudinal central plane, the groups of pipes diverging downwardly from the trunnions, substantially as set forth.

11. The combination of a vat provided with horizontal bearings and an oscillating coil having trunnions which are journaled in 'said bearings and having longitudinal circulating-pipes which are arranged in groups on IIS I 5 nions j ournaled in said bearings, a chambered opposite sides of its longitudinal central plane, the groups of pipes first diverging downwardly from the trunnions and then head connecting with the inlet-trunnion, a chambered head connected With the outlettrunnion, longitudinal circulating-pipes, connecting the chambers of said heads, and a horizontal outlet-pipe extending from the 20 lower chamber of the inlet-head to the outlet-head and connected With the outlet-trunnion, substantially as set forth.

Witness my hand this 1st day of August, 1906.

HARVEY FELDMEIER.

Witnesses l M. L. HoYT, H. W. DALE. 

